xref: /openbsd/lib/libc/string/wcschr.c (revision 7b36286a)
1 /*	$OpenBSD: wcschr.c,v 1.4 2008/08/23 05:34:36 djm Exp $	*/
2 /*	$NetBSD: wcschr.c,v 1.2 2001/01/03 14:29:36 lukem Exp $	*/
3 
4 /*-
5  * Copyright (c)1999 Citrus Project,
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	citrus Id: wcschr.c,v 1.2 2000/12/21 05:07:25 itojun Exp
30  */
31 
32 #include <wchar.h>
33 
34 wchar_t *
35 wcschr(const wchar_t *s, wchar_t c)
36 {
37 	const wchar_t *p;
38 
39 	p = s;
40 	for (;;) {
41 		if (*p == c) {
42 			/* LINTED interface specification */
43 			return (wchar_t *)p;
44 		}
45 		if (!*p)
46 			return NULL;
47 		p++;
48 	}
49 	/* NOTREACHED */
50 }
51